In the late 19th century, humanity invented the wireless telegraph, thus beginning the exploration of the wireless world. The wireless telegraph machines of the time used a spark-gap transmitter, primarily to transmit Morse code. Early wireless telegraph machines, with the Morse code design in the lower left corner This telegraph machine could not receive and … Read more
Wi-Fi 7 is finally here! In recent months, several domestic manufacturers have intensively launched new Wi-Fi 7 routers, attracting the attention of the entire market. The emergence of these new products marks the true entry of Wi-Fi 7 into a comprehensive commercial phase. Every user can start to experience and use this latest technology. To … Read more
The trend of hardware visualization is in full swing, and the Corsair iCUE H150i ELITE LCD XT cooler is equipped with an IPS LCD screen, building on our previous tests of the iCUE H150i ELITE CAPELLIX XT. With excellent display effects and rich customization options, it takes personalized “lighting” to a new height. Let’s experience … Read more
Overview In the design of high-speed analog signal chains, the layout and routing of the printed circuit board (PCB) need to consider many options, some of which are more important than others, while others depend on the application. The final answers vary, but in all cases, design engineers should consider the overall picture rather than … Read more
Acquisition Time Acquisition time is the time required for the sample-and-hold circuit to stabilize the sample capacitor voltage within 1 LSB range of the new input value after releasing the hold state.The formula for acquisition time (Tacq) is as follows: Aliasing According to the sampling theorem, input signal frequencies above the Nyquist frequency are referred … Read more
1 ADC Chip Debugging Understanding the function of the ADC chip: the Analog-to-Digital Converter (ADC) converts analog voltage into a digital signal. Connect the voltage line to the ADC’s measurement pin, and the ADC module will detect this voltage and automatically convert it to a number. Reading this number gives us the relationship between the … Read more
Implementing a DAC0832 to Output a Sawtooth Wave – Understanding Digital to Analog Conversion from Scratch Today we will implement an interesting case: using the DAC0832 to output a sawtooth wave. Through this case, not only will we learn the basic principles of DACs, but we will also master the methods for waveform generation. Introduction … Read more
With the rapid development of the Internet of Things, remote healthcare, and autonomous driving, the demand for high-speed signals in modern society is increasing. Currently, the signal frequency in electronic system design is generally above 100MHz, and high-speed data transmission lines face challenges in signal integrity. During transmission, signals are prone to issues such as … Read more
Yesterday, a student asked me how to drive the DAC5571. I had a solution written by a teacher on hand, and inspired by it, I wrote a simple module. First, let’s take a look at the DAC5571 manual. It uses SDA and SCL for driving, which is the IIC protocol.The waveforms of SDA and SCL … Read more
DAC Model: ES7148. Package: QFN12. Operating Temperature: -40~+85℃. 1. Overview The ES7148 is a 12-pin, 24-bit stereo D/A converter that uses PCM (Pulse Code Modulation). It supports 24-bit word length I2S serial audio data format input. Utilizing multi-bit ∆-Σ modulation technology, it converts digital signals to dual-channel analog signal output. The multi-bit ∆-Σ modulator makes … Read more